{% for message in messages %}
    {% if loop.first and messages[0]['role'] != 'system' %}
        {{ '<|im_start|>system\nYou are a helpful assistant<|im_end|>\n' }}
    {% endif %}
    {{'<|im_start|>' + message['role'] + '\n' + message['content'] + '<|im_end|>' + '\n'}}
{% endfor %}
{% if add_generation_prompt %}{{ '<|im_start|>assistant\n' }}{% endif %}
